Fluid for industrial purposes



Patented Mar. 9, 1926.

UNHTED STATES T EDWARD B. BBODTON', OE PHILADELPHIA, PENNSYLVANIA.

I'LUiD FOR INDUSTRIAL rnnrosns.

llo Drawing.

To all whom it may concern:

Be it known that I, EDWARD R. BRoDToN,

a resident of Philadel hia, Pennsylvania,

and a citizen of the United States, have invented certain new and useful Improvements in Fluids for Industrial Purposes, of which the following is a specification.

Myinvention has for its object the produotion of a li uid that will be non-explosive and non-com ustible, or non-flammable,

will have a low boiling point, and produce a vapor or gas in great volume, be without injurious efiect on metals, fabrics or other materials with which it may be used, or to which it may be ap lied, and inexpensive of production, and w 'ch by reason of these properties, or some of them, may be put to many industrial uses, such for example, as q the generation'of power for driving engines or motors; for extinguishin fires; for use in thermostats requiring a eat-responsive fluid, etc.

M invention resides in the fluid, as set fortl i or included in the terms or scope of the ap ded claims I 0 liquid which constitutes my invention is definable as one that consists substantially of methylene chloride and exists in a state in which it is non-explosive and non-inflam mable, non-corrosive of or ithout hurtful effect on metals used for indiiiitrial purposes, such as brass cop er, aluminum and iron, has a boilin point tween 100 and-160 F. and is stab e that is, does not separate into its constituents when vaporized, so that upon condensation, it returns to its original form and constitution.

a plication of heat for use in gines or motors that consists substantia ly of Application filed February 20, 1925. Serial m. 10,890.

My liquid may be made in various ways.

It may be made by treatment of what is known commercially as methylene chloride 40 or di-chlormethane. ,This in its commer-' cial state, is both inflammable and explosive and corrosive, and hence wholly ,unfit and chloride C,H 1,7 to 7 chloroform onoib 1- o to 2%.

What i c aim is:

1. A fluid that consists substantially of methylene chloride, is non-inflammable, noncorrosive of brass,'-,'copper, aluminum and iron and has a boilin point below that of water and above 2. A- liquid which is vaporizable by the drivin enmethylene chloride, is non-inflammable, noncorrosive of b copper, aluminum and iron, and has a b iling point below the boilin point of water.

n testimony whereof I hereunto aflix my signature.

EDWARD n. BnoD'roN.

orideblscmcl), 1% to 7% ethyl 66 

